The Faith & Freedom Coalition chairman believes young Americans' opinion about the issue could change.

Faith & Freedom Coalition Chairman Ralph Reed believes that Republicans have the upper-hand in upcoming elections because of a widespread commitment to traditional marriage.

In an interview published Friday, Reed said that all of the prospective 2016 Republican presidential candidates are "pro-life, pro-family and pro-marriage," and that evangelical Christians will not vote for a candidate that supports same-sex marriage.

"If you poll Republican primary voters, 75 to 80 percent of them are in support of traditional marriage."

Reed also said that some Democrats may not be honest with pollsters when asked about same-sex marriage.

"And what happens is – if you talk to pollsters who poll this – is there's a lot of minority voters who are traditionally Democratic voters, but they're also people of faith," he explained. "And they tend to tell pollsters that they're going to vote one way, and then they go in and vote another way."

"Political Capital" host Al Hunt pointed out that young Americans are overwhelming in support of same-sex marriage, but Reed said that their feelings may change.

"A lot of the people who in the 60s and 70s were protesting the Vietnam War, and for legalizing drugs, were voting for Ronald Reagan in 1980 and '84," he said. "People change."

The conservative activist said that gay marriage is a hot button topic that places Republicans ahead of Democrats in the minds of evangelicals.

"It's definitely a winner," he proclaimed. "And it's a winner in ways that surprise a lot of people."

Reed also said that, for the Coalition, there isn't a clear favorite in the GOP primary race.

Thousands of Israelis attended demonstrations across the country on Saturday, two days after an ultra-Orthodox Jew stabbed six people atJerusalem's gay pride parade, leaving one teenager in critical condition.

Britain and France on Sunday urged other European Unionstates to help them tackle the growing crisis in northern France caused by thousands of migrants seeking to make illegal and dangerous crossings into England.